Feature Request: Animated redraw / Individually colored bars

Would it be possible to add a method that will allow the chart values to be updated and for any changes in the bar value to be shown by animating/transitioning to the new value.

I was able to get to the chart to redraw by force removal of the SVG nodes:-

  function refreshChart(values, labels) {
    if (chart !== undefined) {
      chart.data.labels = labels;
      chart.data.values = values;
      chart.svg.selectAll("*").remove();
      chart.drawChart();
    }
  }

This works but looks a little janky and has downsides such as no longer supporting tooltips, interactive highlight, etc. as the nodes are being recreated:-

It would be awesome if there was a way to update all the options and call refresh()/redraw() and have these changes reflected without having to destroy the SVG nodes:-

I would also like to be able to supply an array of colours for the bar charts similar to what is supported for the pie charts. Supporting only a single colour seems very limiting for such a cool chart.

Thanks